APA引文

Beekmann, P. (1971). History of Pi. St. Martin's Press.

Chicago Edition Citation

Beekmann, Petr. History of Pi. New York: St. Martin's Press, 1971.

MLA引文

Beekmann, Petr. History of Pi. St. Martin's Press, 1971.

警告：這些引文格式不一定是100％准確.